Improved boot-dumping machine



R. H. DORN.

BOOT URIMPING MACHINE.

No. 78,438. Patented June 2; 1868.

@ 'iirii gram gaunt @ffire.

' working into a lock, it, on the under side of the same. The pinions aare driven by the pinions b on the crank- R. H. DORN, OF PORT HENRY, NEWYORK, ASSIGNOR TO HIMSELF AND I. G. GREENE, OF SAME PLACE.

Letters Patent Na. 78,438, dated Jam 2, 1868.

IMPROVED BooT-cmurme mounts.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, R. H. DORN, of Port Henry, in the county of Essex,and State of New York, have invented a ne w and improved Boot-CrimpingMachine; and I do hereby declare that the following is a full, clear,and exact description thereof, which will enable others skilled in'theart to make and use the same, reference being had to the accompanyingdrawings, forming part of this specification.

The nature of my invention relates to improvements in apparatus forcrimping boot-stock, whereby the same may be performed in an expeditiousand uniform manner, and it consists in the arrangement, upon a suitablebench, of a slide made to move back and forth by opinion gearing into arack on the under side of the same, on which rack a series ofri-ght=angled formers is carried on its upper side.

These formers are caused to pass between two clamping or pressing-jaws,which are moved in an opposite direction by gearing in a similar manner,and are provided withsinoothing-rollers which bear against that part ofthe leather which is cri-mped in the angle of the formers, and turn in adirection so that the surfaces of the said rollers that come in contactwith the leather movc opposite to that in which the leather is beingcarried by the formers, so as to produce a smoothing or rubbing action.

The said clamping-jaws are provided, ,on the inner sidesof the samc,withiron plates having right-angular grooves or ridgcs'formed within them,and arranged, with reference to the formers, in a direction opposite tothe inclination. of the formers, so that their action on the leatherwill be to smooth it from the angle outward in' either direction, aswillbe more fully described on reference to the accompanying drawings,wherein- Figure 1 represents a side elevation of 'my improved apparatus.

Figure 2 is a cross-section of the same on the line a: :i: of fig. 1;and,

Figure 3 represents an inside view of one of. the singularly-groovedplates aflixed to the'clamping-jaws.

Similar letters of referencc indicate corresponding parts.

it represents a bench, on which the slide B is caused to move back andforth by means of the pinions a,

shaft (1.

b 5 represent right-angled crimping-formers fixed in a verticalposition'on the top of said slide B. y

c 0 represent two clamping-plates, which are also caused to slide backand forth on the table by means of the pinions b b on the crank-shaft'C,but in an opposite direction to that in which the slide B moves, one oneach side of the former-slide B.

The said plates care provided on their inner sides with iron plates, D,having right-angled grooves and ridges, but which are set, withreference to the formersb", in a direction opposite to the same.

E E represent vertical rollers fixed in openings in the side-plates0,150 which rotary motion iS-COmlIIHDiOS-tGli by means of pinions on thelower ends of the axles of the some, which gear into stationary racks dd, arranged on the top of the bench, as'the plates cc slide back andforth. The said plates are prevented from separating at the top by thetie-pieces cc. i v I Thc'operation is as follows: The leather to beerimped is placed on the formers, in the proper position, and held inplace temporarily-by tacks, or it may be placed on. by an attendant aseach former is about to pass between the plates.- Motion beingapplicd tothe driving-shaft in the proper direction, the slide B and formers bwill be passed between the olamping-plates c, by-which the parts oftheleather lapping around the sides of the formers will be pressed andsmoothed hard against them by the ridges onv the inner iron platesD,which, being arranged so that their angles of inclination are opposed tothose of the crimping-formers, will press the leather from the points or'apexes of the angles of the formers in each direction upward anddownward from the said points, thereby producing the best effects on theleather to smooth and set the same. As the farmers continhe in theirpassage through the saidclamping-plates c, the leather is broughtinto'contact with the rollers. E E on each side, which are intended toact more directly upon that part of the leatherwhich is bent around theangles of the formers. i w

reuse 2 The surfaces of these rollers which act on the leather arecaused to move in the direction opposite to that in which the slide-Bmoves, thereby giving a greater amount of smoothing effect to the same.

Having thus fully described my invention, what I china, and desire tosecure by Letters Patent, is--- The slideB, provided withthecrimpingiormers b, in combination with the clamping sliding jaws c c,substantially as and for thepurpose described;

The slide B, provided with the crimping-forms b, in combination with theclamping sliding jaws a c, prorided with the ridged plates D,substantially as and for the purpose described.

The combination, with the plates c c, slide B, and .crimping-forms, ofthe smoothing-rollers, substantially as and for the purpose described.

The above specification of my invention signed by me,-this 14th day ofFebruary, 1868.

" v R. H. DORN.

Witnesses:

JAMES G. GREENE, JAY L. Donn.

